I70.203: Unspecified atherosclerosis of native arteries of extremities, bilateral legs

I70.203, unspecified atherosclerosis of native arteries of extremities, bilateral legs, is listed as a covered diagnosis in 11 Medicare billing and coding articles that apply to 33 HCPCS Level II codes, including G0127 (Trimming of dystrophic nails, any number), G0278 (Iliac and/or femoral artery angiography, non-selective…), C8900 (Magnetic resonance angiography with contrast, abdomen). The articles come from 7 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.

HCPCS Level II codes with I70.203 as a covered diagnosis

CodeDescriptionMedicare coverageDMEPOS fee 2026 (state range)Articles listing it
G0127Trimming of dystrophic nails, any numberSpecial coverage instructions apply—7
G0278Iliac and/or femoral artery angiography, non-selective, bilateral or ipsilateral to catheter insertion, performed at the same time as cardiac catheterization and/or coronary angiography, includes positioning or placement of the catheter in the distal aorta or ipsilateral femoral or iliac artery, injection of dye, production of permanent images, and radiologic supervision and interpretation (list separately in addition to primary procedure)Carrier judgment—1
C8900Magnetic resonance angiography with contrast, abdomenSpecial coverage instructions apply—2
C8901Magnetic resonance angiography without contrast, abdomenSpecial coverage instructions apply—2
C8902Magnetic resonance angiography without contrast followed by with contrast, abdomenSpecial coverage instructions apply—2
C8909Magnetic resonance angiography with contrast, chest (excluding myocardium)Special coverage instructions apply—2
C8910Magnetic resonance angiography without contrast, chest (excluding myocardium)Special coverage instructions apply—2
C8911Magnetic resonance angiography without contrast followed by with contrast, chest (excluding myocardium)Special coverage instructions apply—2
C8912Magnetic resonance angiography with contrast, lower extremitySpecial coverage instructions apply—2
C8913Magnetic resonance angiography without contrast, lower extremitySpecial coverage instructions apply—2
C8914Magnetic resonance angiography without contrast followed by with contrast, lower extremitySpecial coverage instructions apply—2
C8918Magnetic resonance angiography with contrast, pelvisSpecial coverage instructions apply—2
C8919Magnetic resonance angiography without contrast, pelvisSpecial coverage instructions apply—2
C8920Magnetic resonance angiography without contrast followed by with contrast, pelvisSpecial coverage instructions apply—2
J0461Injection, atropine sulfate, 0.01 mgSpecial coverage instructions apply—1
A9500Technetium tc-99m sestamibi, diagnostic, per study doseCarrier judgment—1
J0153Injection, adenosine, 1 mg (not to be used to report any adenosine phosphate compounds)Special coverage instructions apply—1
A9502Technetium tc-99m tetrofosmin, diagnostic, per study doseCarrier judgment—1
A9555Rubidium rb-82, diagnostic, per study dose, up to 60 millicuriesCarrier judgment—1
J1250Injection, dobutamine hydrochloride, per 250 mgSpecial coverage instructions apply—1
J0280Injection, aminophyllin, up to 250 mgSpecial coverage instructions apply—1
J1245Injection, dipyridamole, per 10 mgSpecial coverage instructions apply—1
A9505Thallium tl-201 thallous chloride, diagnostic, per millicurieCarrier judgment—1
A9526Nitrogen n-13 ammonia, diagnostic, per study dose, up to 40 millicuriesCarrier judgment—1
A4641Radiopharmaceutical, diagnostic, not otherwise classifiedCarrier judgment—1

8 more codes are listed. See every code with payment by region in Caduvo.

Medicare policy articles listing I70.203

A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.

Other I70 diagnoses (Atherosclerosis)

Frequently asked questions

Does Medicare cover I70.203 (Unspecified atherosclerosis of native arteries of…)?

Medicare covers items and services, not diagnoses. 11 Medicare billing and coding articles list I70.203 as a covered diagnosis for 33 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.

Which HCPCS codes can be billed with ICD-10 I70.203?

The Level II codes from the policies most specific to this diagnosis are G0127 (Trimming of dystrophic nails, any number, 7 articles); G0278 (Iliac and/or femoral artery angiography, non-selective…, 1 article); C8900 (Magnetic resonance angiography with contrast, abdomen, 2 articles); C8901 (Magnetic resonance angiography without contrast, abdomen, 2 articles); C8902 (Magnetic resonance angiography without contrast followed…, 2 articles). Code choice depends on the item supplied; check each code's descriptor.

Which Medicare policy articles list I70.203?

A57759 (Billing and Coding: Routine Foot Care and Debridement of Nails); A56682 (Billing and Coding: Diagnostic Abdominal Aortography and Renal Angiography); A56476 (Billing and Coding: Cardiac Radionuclide Imaging), and 8 more articles.

What is ICD-10-CM code I70.203?

I70.203 is the ICD-10-CM code for unspecified atherosclerosis of native arteries of extremities, bilateral legs, in category I70 (Atherosclerosis), chapter 9: Diseases of the circulatory system.

Next steps

Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.

Chapter 9: Diseases of the circulatory system · All diagnoses · HCPCS lookup